#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
void swap(int* pa, int* pb)
{
	int t = *pa;
	    *pa = *pb;
	    *pb = t;
}
int main()
{
	int a = 0;
	int b = 0;
	scanf("%d %d", &a, &b);
	swap(&a, &b);
	printf("%d %d", a, b);
	return 0;
}
